Quality detection method and device for composite copper foil equipment

Abstract

The invention discloses a quality detection method and device for composite copper foil equipment, and the method comprises the steps: obtaining the vibration amplitude and vibration frequency of each type of copper foil scratch test based on a vibration tester in the operation process of the composite copper foil equipment; then determining a first ratio between any two vibration amplitudes in the vibration amplitudes; determining a second ratio between any two vibration frequencies in the vibration frequencies; if each first ratio belongs to a preset first ratio range and each second ratio belongs to a preset second ratio range, it is indicated that the stability of the composite copper foil equipment on the scratch test of various types of copper foils is good at the moment, and it is indicated that the scratch test function of the composite copper foil equipment is normal; otherwise, determining that the scratch test function of the composite copper foil equipment is abnormal. Therefore, an automatic composite copper foil equipment quality detection scheme is realized.

Description

Technical Field

[0001] The present application relates to the technical field of composite copper foil, and in particular to a quality detection method and device for composite copper foil equipment. Background Art

[0002] With the continuous development and popularization of electronic products, the demand for high-performance and high-density circuit boards is increasing. In electronic products, copper foil is an important conductive material and is widely used in the manufacture of circuit boards. In order to meet the market demand for high-performance circuit boards, it is necessary to develop a device that can produce high-quality composite copper foil, and an efficient control method is needed to ensure the quality and stability of the production process.

[0003] Traditional equipment for producing composite copper foil usually adopts process steps such as coating, lamination, and baking, each of which requires precise control and adjustment to ensure the quality of the final product. However, traditional control methods usually rely on experience and manual operation, and there are problems such as low production efficiency and large quality fluctuations. At present, there is no solution that can automatically detect the quality of composite copper foil equipment and thus ensure the quality of the copper foil produced. Summary of the invention

[0004] The present application provides a quality inspection method and device for composite copper foil equipment, which are used to provide an automated quality inspection solution for composite copper foil equipment.

[0005] In a first aspect, the present application provides a quality inspection method for a composite copper foil device, the method comprising:

[0006] Obtain the vibration amplitude and vibration frequency of various types of copper foil scratch tests based on the vibration tester;

[0007] Determine a first ratio between any two vibration amplitudes in each vibration amplitude; and determine a second ratio between any two vibration frequencies in each vibration frequency;

[0008] If each first ratio belongs to the preset first ratio range, and each second ratio belongs to the preset second ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0009] Further, determining that the scratch test function of the composite copper foil device is normal includes:

[0010] Acquire the pre-saved target vibration amplitude and target vibration frequency of the scratch test of each type of copper foil when the composite copper foil device functions normally;

[0011] For each type of copper foil, determining a third ratio of the vibration amplitude of the copper foil scratch test to the target vibration amplitude, and determining a fourth ratio of the vibration frequency of the copper foil scratch test to the target vibration frequency;

[0012] If each third ratio belongs to the preset third ratio range, and each fourth ratio belongs to the preset fourth ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0013] Furthermore, the method further comprises:

[0014] Adding the copper foils of the various types into an electrolyte, and detecting the first lattice structure of the grains on the surface of the copper foil after electrolysis of the copper foil using an X-ray diffractometer;

[0015] Acquire the second lattice structure of the surface grains of the copper foil of each type of copper foil after electrolysis when the function of the composite copper foil device is normal, which is stored in advance;

[0016] For each type of copper foil, determining the similarity between a first lattice structure and a second lattice structure corresponding to the copper foil;

[0017] If all similarities fall within the preset similarity range, it is determined that the function of the composite copper foil device is normal; otherwise, it is determined that the electrolysis function of the composite copper foil device is abnormal.

[0018] Furthermore, the method further comprises:

[0019] For each type of copper foil, electrolyze the copper foil, and then perform coating and pressing treatment to obtain a first composite copper foil corresponding to the copper foil; and test the tensile strength and elongation at break of the first composite copper foil using a tensile tester;

[0020] Obtaining the pre-saved target tensile strength and target elongation at break of the first composite copper foil corresponding to each type of copper foil when the composite copper foil device functions normally;

[0021] For each type of copper foil, determining a fifth ratio of the tensile strength of the first composite copper foil corresponding to the copper foil to the target tensile strength, and determining a sixth ratio of the elongation at break of the first composite copper foil corresponding to the copper foil to the target elongation at break;

[0022] If each fifth ratio belongs to the preset fifth ratio range, and each sixth ratio belongs to the preset sixth ratio range, it is determined that the pressing function of the composite copper foil device is normal; otherwise, it is determined that the pressing function of the composite copper foil device is abnormal.

[0023] Furthermore, the method further comprises:

[0024] For each type of copper foil, the first composite copper foil corresponding to the copper foil is cleaned and dried to obtain a second composite copper foil; and the reflectivity of the second composite copper foil is detected by a photoelectric sensor;

[0025] Acquire the pre-saved target reflectivity of the second composite copper foil corresponding to each type of copper foil when the composite copper foil device functions normally;

[0026] For each type of copper foil, determining a seventh ratio of the reflectivity of the second composite copper foil corresponding to the copper foil to the target reflectivity;

[0027] If all the seventh ratios belong to the preset seventh ratio range, it is determined that the cleaning function of the composite copper foil device is normal; otherwise, it is determined that the cleaning function of the composite copper foil device is abnormal.

[0028] In a second aspect, the present application provides a quality detection device for a composite copper foil device, the device comprising:

[0029] An acquisition module, used for acquiring the vibration amplitude and vibration frequency of various types of copper foil scratch tests based on a vibration tester;

[0030] A determination module, used to determine a first ratio between any two vibration amplitudes in each vibration amplitude; and to determine a second ratio between any two vibration frequencies in each vibration frequency;

[0031] The scratch test function detection module is used to determine that the scratch test function of the composite copper foil device is normal if each first ratio belongs to a preset first ratio range and each second ratio belongs to a preset second ratio range; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0032] Furthermore, the scratch test function detection module is specifically used to obtain the pre-saved target vibration amplitude and target vibration frequency of the scratch test of each type of copper foil when the function of the composite copper foil device is normal; for each type of copper foil, determine the third ratio of the vibration amplitude of the copper foil scratch test to the target vibration amplitude, and determine the fourth ratio of the vibration frequency of the copper foil scratch test to the target vibration frequency; if each third ratio belongs to the preset third ratio range, and each fourth ratio belongs to the preset fourth ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0033] Furthermore, the device also includes:

[0034] The electrolysis function detection module is used to add the various types of copper foils into the electrolyte, and detect the first lattice structure of the grains on the surface of the copper foil after the copper foil is electrolyzed based on an X-ray diffractometer; obtain the second lattice structure of the grains on the surface of the copper foil of the various types of copper foil after the copper foil is electrolyzed when the function of the composite copper foil device is normal; for each type of copper foil, determine the similarity between the first lattice structure and the second lattice structure corresponding to the copper foil; if each similarity falls within a preset similarity range, determine that the function of the composite copper foil device is normal; otherwise, determine that the electrolysis function of the composite copper foil device is abnormal.

[0035] Furthermore, the device also includes:

[0036] A pressing function detection module is used for, for each type of copper foil, electrolyzing the copper foil, and then coating and pressing the copper foil to obtain a first composite copper foil corresponding to the copper foil; detecting the tensile strength and elongation at break of the first composite copper foil based on a tensile tester; obtaining the target tensile strength and target elongation at break of the first composite copper foil corresponding to each type of copper foil when the function of the composite copper foil device is normal; for each type of copper foil, determining the fifth ratio of the tensile strength of the first composite copper foil corresponding to the copper foil to the target tensile strength, and determining the sixth ratio of the elongation at break of the first composite copper foil corresponding to the copper foil to the target elongation at break; if each fifth ratio belongs to the preset fifth ratio range, and each sixth ratio belongs to the preset sixth ratio range, it is determined that the pressing function of the composite copper foil device is normal; otherwise, it is determined that the pressing function of the composite copper foil device is abnormal.

[0037] Furthermore, the device also includes:

[0038] A cleaning function detection module is used to clean and dry the first composite copper foil corresponding to each type of copper foil to obtain a second composite copper foil; detect the reflectivity of the second composite copper foil based on a photoelectric sensor; obtain the target reflectivity of the second composite copper foil corresponding to each type of copper foil when the function of the composite copper foil equipment is normal; for each type of copper foil, determine the seventh ratio of the reflectivity of the second composite copper foil corresponding to the copper foil to the target reflectivity; if each seventh ratio belongs to the preset seventh ratio range, it is determined that the cleaning function of the composite copper foil equipment is normal; otherwise, it is determined that the cleaning function of the composite copper foil equipment is abnormal.

[0039] The present application provides a quality inspection method and device for composite copper foil equipment, which has the following advantages or beneficial effects:

[0040] In the present application, during the operation of the composite copper foil equipment, the vibration amplitude and vibration frequency of each type of copper foil scratch test are obtained based on the vibration tester; then the first ratio between any two vibration amplitudes in each vibration amplitude is determined; and the second ratio between any two vibration frequencies in each vibration frequency is determined; if each first ratio belongs to the preset first ratio range, and each second ratio belongs to the preset second ratio range, then it means that the composite copper foil equipment has good stability for each type of copper foil scratch test, indicating that the scratch test function of the composite copper foil equipment is normal; if any first ratio does not belong to the preset first ratio range, or any second ratio does not belong to the preset second ratio range, it is determined that the scratch test function of the composite copper foil equipment is abnormal. Thus, an automated composite copper foil equipment quality inspection solution is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Schematic diagram of the quality inspection process of the composite copper foil equipment provided for this application;

[0042] Figure 2 Schematic diagram of the quality inspection process of the composite copper foil equipment provided for this application;

[0043] Figure 3 Schematic diagram of the quality inspection process of the composite copper foil equipment provided for this application;

[0044] Figure 4 Schematic diagram of the quality inspection process of the composite copper foil equipment provided for this application;

[0045] Figure 5 Schematic diagram of the quality inspection process of the composite copper foil equipment provided for this application;

[0046] Figure 6 Schematic diagram of the rectangular and dog-bone patterns of copper foil provided for this application;

[0047] Figure 7 A schematic diagram of the structure of a quality detection device for the composite copper foil equipment provided in this application;

[0048] Figure 8 This is a schematic diagram of the electronic device structure provided in this application. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] The technical terms involved in this application are explained as follows:

[0051] This application is based on multithreading for processing. Multithreading refers to the technology of implementing concurrent execution of multiple threads from software or hardware. Computers with multithreading capabilities can execute more than one thread at the same time due to hardware support, thereby improving overall processing performance. Systems with this capability include symmetric multiprocessors (symmetric multiprocessing is a multiprocessor hardware architecture with two or more identical processors (processors) sharing the same main memory and controlled by an operating system), multi-core processors, and chip-level multiprocessing or simultaneous multithreading processors. In a program, these independently running program fragments are called "threads", and the concept of programming using them is called "multithreading".

[0052] A vibration tester is an instrument used to measure and analyze the vibration characteristics of an object. By measuring and analyzing the vibration signal of an object under external excitation, it can obtain information such as the object's vibration frequency, amplitude, phase, etc., thereby evaluating the structural health of the object.

[0053] The working principle of an X-ray diffractometer is to use the wave properties of X-rays. When X-rays are irradiated onto a crystal, the atoms in the crystal will scatter these rays. Since the spacing between the regularly arranged atoms in the crystal is comparable to the wavelength of the X-rays, these scattered X-rays will interfere and produce a strong diffraction effect in certain specific directions. The distribution and intensity of the diffraction waves depend on the internal laws of the crystal structure. Each crystal will produce a unique diffraction pattern that reflects the atomic distribution inside it. By analyzing these diffraction results, detailed information about the crystal structure can be obtained, including chemical composition, lattice type and structure, crystal plane index and relative strength, texture and stress, and phase composition. Since the properties of a substance are closely related to its crystal structure, X-ray diffraction technology is widely used in the precise determination of the structure of a substance and phase analysis.

[0054] Photoelectric sensors are controlled by converting changes in light intensity into changes in electrical signals. In general, photoelectric sensors are composed of three parts: transmitter, receiver, and detection circuit. The transmitter aims at the target to emit a light beam, which generally comes from a semiconductor light source, a light emitting diode (LED), a laser diode, and an infrared emitting diode. The light beam is emitted continuously or changes the pulse width. The receiver is composed of a photodiode, a phototransistor, and a photocell. In front of the receiver, optical components such as lenses and apertures are installed. Behind it is a detection circuit that can filter out effective signals and apply the signal. In addition, the structural components of the photoelectric switch also include a launch plate and an optical fiber. The triangular reflector is a sturdy transmitting device. It is composed of a very small triangular pyramid reflective material, which can accurately return the light beam from the reflector, and has practical significance. It can change the emission angle in the range of 0 to 25 degrees from the optical axis, so that the light beam is almost from a transmitting line, and after reflection, it returns from this reflected line.

[0055] This application first performs a scratch test on the copper foil. The vibration tester detects the vibration amplitude and vibration frequency of the current copper foil scratch and compares it with the cloud data to determine whether the current copper foil material meets the standard. To determine that the current copper foil meets the standard, the electrolyte is proportioned according to the optimal composite additive ratio of PEG, HVP and HP and the copper foil is added to the electrolyte. The x-ray diffractometer detects the lattice structure of the current electrolytic copper foil and compares it with the cloud data to determine whether the current electrolysis is normal. To determine that the electrolytic copper foil is in a normal state, the electrolytic copper foil is coated and pressed into a composite copper foil, and the composite copper foil is dog-bone stretched. The tensile tester detects the tensile tensile strength and elongation at break of the composite copper foil and compares it with the cloud data to determine whether the quality of the composite copper foil is qualified. To determine that the quality of the composite copper foil is qualified, the composite copper foil is cleaned and dried, the irradiation device irradiates the current composite copper foil, and the photoelectric sensor detects the reflectivity of the composite copper foil and compares it with the cloud data to determine whether the composite copper foil is clean.

[0056] Figure 1 A schematic diagram of the quality inspection process of the composite copper foil equipment provided in this application, the process includes the following steps:

[0057] S101: during the operation of the composite copper foil equipment, the vibration amplitude and vibration frequency of various types of copper foil scratch tests are obtained based on a vibration tester;

[0058] S102: determining a first ratio between any two vibration amplitudes in each vibration amplitude; and determining a second ratio between any two vibration frequencies in each vibration frequency;

[0059] S103: If each first ratio belongs to a preset first ratio range, and each second ratio belongs to a preset second ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0060] The quality inspection method of the composite copper foil device provided in the present application is applied to an electronic device, which may be a PC, a tablet computer or the like, or a server.

[0061] After the composite copper foil equipment is powered on, various types of copper foils are introduced into the production line for scratch testing. Start the vibration tester to obtain the vibration amplitude and vibration frequency of each type of copper foil scratch test. For example, the various types of copper foils include copper foil of type L1, copper foil of type L2, and copper foil of type L3. Obtain the vibration amplitude and vibration frequency of each type of copper foil scratch test. For example: obtain the vibration amplitude a1 and vibration frequency f1 of copper foil of type L1; obtain the vibration amplitude a2 and vibration frequency f2 of copper foil of type L2; obtain the vibration amplitude a3 and vibration frequency f3 of copper foil of type L3.

[0062] Determine the first ratio between any two vibration amplitudes in each vibration amplitude, that is, determine the first ratio of a1 and a2, the first ratio of a2 and a3, and the first ratio of a1 and a3. Determine the second ratio between any two vibration frequencies in each vibration frequency, that is, determine the second ratio of f1 and f2, the second ratio of f2 and f3, and the second ratio of f1 and f3.

[0063] If each first ratio belongs to the preset first ratio range, and each second ratio belongs to the preset second ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0064] The preset first ratio range is, for example, 50%-150%, and the preset second ratio range may be the same as or different from the preset first ratio range.

[0065] Figure 2 A schematic diagram of the quality inspection process of the composite copper foil equipment provided in this application, the process includes the following steps:

[0066] S201: Acquire the pre-saved target vibration amplitude and target vibration frequency of the scratch test of each type of copper foil when the composite copper foil device functions normally;

[0067] S202: for each type of copper foil, determining a third ratio of the vibration amplitude of the copper foil scratch test to the target vibration amplitude, and determining a fourth ratio of the vibration frequency of the copper foil scratch test to the target vibration frequency;

[0068] S203: If each third ratio belongs to the preset third ratio range, and each fourth ratio belongs to the preset fourth ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0069] In the present application, for example, each type of copper foil includes copper foil of type L1, copper foil of type L2, and copper foil of type L3. When the function of the pre-saved composite copper foil device is normal, the target vibration amplitude A1 and target vibration frequency F1 of the scratch test of copper foil of type L1, the target vibration amplitude A2 and target vibration frequency F2 of the scratch test of copper foil of type L2, and the target vibration amplitude A3 and target vibration frequency F3 of the scratch test of copper foil of type L3 are obtained.

[0070] For each type of copper foil, determine the third ratio of the vibration amplitude of the copper foil scratch test to the target vibration amplitude. That is, respectively determine the third ratio of a1 to A1, the third ratio of a2 to A2, and the third ratio of a3 to A3. Determine the fourth ratio of the vibration frequency of the copper foil scratch test to the target vibration frequency. That is, respectively determine the fourth ratio of f1 to F1, the fourth ratio of f2 to F2, and the fourth ratio of f3 to F3.

[0071] If each third ratio belongs to the preset third ratio range, and each fourth ratio belongs to the preset fourth ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0072] The preset third ratio range is, for example, 95%-105%, and the preset fourth ratio range and the preset third ratio range may be the same or different.

[0073] Preferably, if each first ratio belongs to the preset first ratio range, and each second ratio belongs to the preset second ratio range, and each third ratio belongs to the preset third ratio range, and each fourth ratio belongs to the preset fourth ratio range, it is determined that the scratch test function of the composite copper foil device is normal; if any of the above four conditions is not met, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0074] Figure 3 A schematic diagram of the quality inspection process of the composite copper foil equipment provided in this application, the process includes the following steps:

[0075] S301: adding the copper foils of the various types into an electrolyte, and detecting the first lattice structure of the grains on the surface of the copper foil after electrolysis of the copper foil using an X-ray diffractometer;

[0076] S302: obtaining the second lattice structure of the surface grains of the copper foil of each type of copper foil after electrolysis when the function of the composite copper foil device is normal, which is stored in advance;

[0077] S303: for each type of copper foil, determining the similarity between the first lattice structure and the second lattice structure corresponding to the copper foil;

[0078] S304: If all similarities belong to a preset similarity range, it is determined that the function of the composite copper foil device is normal; otherwise, it is determined that the electrolysis function of the composite copper foil device is abnormal.

[0079] Optionally, the electrolyte parameters are: Cu2+ (85 g / L), H2SO4 (95 g / L) and Cl- (10 mg / L), the electrolyte temperature is 50°C, and the current density is 20 A / dm2. The PEG concentrations are 0, 0.09 g / L, 0.18 g / L and 0.36 g / L, respectively; the HVP concentrations are 0, 0.06 g / L, 0.12 g / L and 0.24 g / L, respectively; and the HP concentrations are 0, 0.05 g / L, 0.10 g / L and 0.15 g / L, respectively.

[0080] The copper foils of the various types are added to the electrolyte, and the first lattice structure of the surface grains of the copper foil after the copper foil is electrolyzed is detected based on an X-ray diffractometer. For example, the various types of copper foils include copper foils of type L1, copper foils of type L2, and copper foils of type L3. The first lattice structure m1 of the surface grains of the copper foil of type L1 after electrolysis is detected based on an X-ray diffractometer, the first lattice structure m2 of the surface grains of the copper foil of type L2 after electrolysis is detected, and the first lattice structure m3 of the surface grains of the copper foil of type L3 after electrolysis is detected.

[0081] When the function of the pre-saved composite copper foil equipment is normal, the second lattice structure M1 of the surface grains of the copper foil of type L1 after electrolysis, the second lattice structure M2 of the surface grains of the copper foil of type L2 after electrolysis, and the second lattice structure M3 of the surface grains of the copper foil of type L3 after electrolysis.

[0082] For each type of copper foil, the similarity between the first lattice structure and the second lattice structure corresponding to the copper foil is determined, that is, the similarity between m1 and M1, the similarity between m2 and M2, and the similarity between m3 and M3 are determined respectively.

[0083] If all similarities are within the preset similarity range, it is determined that the function of the composite copper foil device is normal; otherwise, it is determined that the electrolysis function of the composite copper foil device is abnormal. The preset similarity threshold is, for example, 93%.

[0084] Figure 4 A schematic diagram of the quality inspection process of the composite copper foil equipment provided in this application, the process includes the following steps:

[0085] S401: for each type of copper foil, electrolyze the copper foil, and then perform coating and lamination treatment to obtain a first composite copper foil corresponding to the copper foil; and test the tensile strength and elongation at break of the first composite copper foil using a tensile tester;

[0086] S402: obtaining the pre-saved target tensile strength and target elongation at break of the first composite copper foil corresponding to each type of copper foil when the composite copper foil device functions normally;

[0087] S403: for each type of copper foil, determining a fifth ratio of the tensile strength of the first composite copper foil corresponding to the copper foil to the target tensile strength, and determining a sixth ratio of the elongation at break of the first composite copper foil corresponding to the copper foil to the target elongation at break;

[0088] S404: If each fifth ratio belongs to the preset fifth ratio range, and each sixth ratio belongs to the preset sixth ratio range, it is determined that the pressing function of the composite copper foil device is normal; otherwise, it is determined that the pressing function of the composite copper foil device is abnormal.

[0089] For example, each type of copper foil includes copper foil of type L1, copper foil of type L2, and copper foil of type L3. Based on the tensile tester, the tensile strength p1 and elongation at break q1 of the first composite copper foil corresponding to the copper foil of type L1, the tensile strength p2 and elongation at break q2 of the first composite copper foil corresponding to the copper foil of type L2, and the tensile strength p3 and elongation at break q3 of the first composite copper foil corresponding to the copper foil of type L3 are detected.

[0090] When the function of the pre-saved composite copper foil equipment is normal, the target tensile strength P1 and target elongation at break Q1 of the first composite copper foil corresponding to the copper foil of type L1, the target tensile strength P2 and target elongation at break Q2 of the first composite copper foil corresponding to the copper foil of type L2, and the target tensile strength P3 and target elongation at break Q3 of the first composite copper foil corresponding to the copper foil of type L3.

[0091] For each type of copper foil, determine the fifth ratio of the tensile strength of the first composite copper foil corresponding to the copper foil to the target tensile strength. That is, determine the fifth ratio of p1 to P1, the fifth ratio of p2 to P2, and the fifth ratio of p3 to P3. Determine the sixth ratio of the elongation at break of the first composite copper foil corresponding to the copper foil to the target elongation at break. That is, determine the sixth ratio of q1 to Q1, the sixth ratio of q2 to Q2, and the sixth ratio of q3 to Q3.

[0092] If each fifth ratio belongs to the preset fifth ratio range, and each sixth ratio belongs to the preset sixth ratio range, it is determined that the pressing function of the composite copper foil device is normal; otherwise, it is determined that the pressing function of the composite copper foil device is abnormal.

[0093] The preset fifth ratio range is, for example, 96%-103%, and the preset sixth ratio range may be the same as or different from the preset fifth ratio range.

[0094] Figure 5 A schematic diagram of the quality inspection process of the composite copper foil equipment provided in this application, the process includes the following steps:

[0095] S501: for each type of copper foil, washing and drying the first composite copper foil corresponding to the copper foil to obtain a second composite copper foil; detecting the reflectivity of the second composite copper foil using a photoelectric sensor;

[0096] S502: Acquire the pre-saved target reflectivity of the second composite copper foil corresponding to each type of copper foil when the composite copper foil device functions normally;

[0097] S503: for each type of copper foil, determining a seventh ratio of the reflectivity of the second composite copper foil corresponding to the copper foil to the target reflectivity;

[0098] S504: If all the seventh ratios belong to the preset seventh ratio range, it is determined that the cleaning function of the composite copper foil device is normal; otherwise, it is determined that the cleaning function of the composite copper foil device is abnormal.

[0099] For each type of copper foil, the first composite copper foil corresponding to the copper foil is cleaned and dried to obtain a second composite copper foil. For example, each type of copper foil includes a copper foil of type L1, a copper foil of type L2, and a copper foil of type L3. The photoelectric sensor detects the reflectivity g1 of the second composite copper foil corresponding to the copper foil of type L1, the reflectivity g2 of the second composite copper foil corresponding to the copper foil of type L2, and the reflectivity g3 of the second composite copper foil corresponding to the copper foil of type L3.

[0100] When the function of the composite copper foil equipment saved in advance is normal, the target reflectivity G1 of the second composite copper foil corresponding to the copper foil of type L1, the target reflectivity G2 of the second composite copper foil corresponding to the copper foil of type L2, and the target reflectivity G3 of the second composite copper foil corresponding to the copper foil of type L3.

[0101] For each type of copper foil, the seventh ratio of the reflectivity of the second composite copper foil corresponding to the copper foil to the target reflectivity is determined, that is, the seventh ratio of g1 to G1, the seventh ratio of g2 to G2, and the seventh ratio of g3 to G3 are determined respectively.

[0102] If all the seventh ratios belong to the preset seventh ratio range, it is determined that the cleaning function of the composite copper foil device is normal; otherwise, it is determined that the cleaning function of the composite copper foil device is abnormal. The preset seventh ratio range is, for example, 97.5%-104.2%.

[0103] The quality inspection method of the composite copper foil equipment provided in the present application comprises the following steps:

[0104] Step S1-1: The intelligent composite copper foil equipment control system obtains the intelligent composite copper foil equipment and powers on, creates thread 1, and the intelligent composite copper foil equipment control system obtains L1-L3 copper foil (L1-L3 represents 3 different copper foils) and introduces them into the composite copper foil production line, performs scratch detection, and starts the vibration tester. The intelligent composite copper foil equipment control system controls the intelligent composite copper foil equipment to perform a scratch test, and the vibration tester obtains the vibration amplitude and vibration frequency of the L1-L3 copper foil scratch test, and determines the first, second, and third amplitudes and frequencies, and matches the first, second, and third amplitudes with the frequencies. Optionally, if the first, second, and third amplitudes and frequencies match a ratio that is not within the range of 0.5-1.5, it is determined that there may be a problem with the vibration tester, and the vibration test control command is saved as 0. The control system of the intelligent composite copper foil equipment stops the intelligent composite copper foil equipment to perform a scratch test, and sends the problem with the vibration tester and the location of the problematic vibration tester to the mobile terminal of the equipment inspector. If the matching ratios of the first, second, and third amplitudes and frequencies are all within the range of 0.5-1.5, it is determined that there is no problem with the vibration tester, and the vibration test control command is saved as 1.

[0105] Step S1-2: When the vibration test control command is obtained as 1, the intelligent composite copper foil equipment control system obtains the standard amplitude and frequency of the copper foil raw material production of the composite copper foil from the cloud, determines it as the fourth amplitude and frequency, matches the first, second, and third amplitudes and frequencies with the fourth amplitude and frequency, and if the first, second, and third amplitudes and frequencies are all less than 95% of the fourth amplitude and frequency, or the first, second, and third amplitudes and frequencies are all greater than 105% of the fourth amplitude and frequency, it is determined that there is a problem with the current L1-L3 copper foil raw materials, and the intelligent composite copper foil equipment control system recycles the L1-L3 copper foil, and sends the scratch data and the copper foil problem to the composite copper foil console to remind the staff. 100ms to reintroduce the copper foil to perform step S1-1. Optionally, if the first, second, and third amplitudes and frequencies are greater than or equal to 95% of the fourth amplitude and frequency, and the first, second, and third amplitudes and frequencies are less than or equal to 105% of the fourth amplitude and frequency, it is determined that the current L1-L3 copper foil raw materials contain copper foil that meets the production standards.

[0106] Step S2-1: The intelligent composite copper foil equipment control system reads the copper foils of L1-L3 that meet the production standards, and recycles the copper foils of L1-L3 that do not meet the standards. Create thread 2, start the x-ray diffractometer, and the intelligent composite copper foil equipment electrolyzes the copper foils that meet the standards, where the electrolyte parameters are: Cu2+ (85g / L), H2SO4 (95g / L) and Cl- (10mg / L), the electrolyte temperature is 50℃, and the current density is 20A / dm2. The PEG concentrations are 0, 0.09g / L, 0.18g / L and 0.36g / L respectively; the HVP concentrations are 0, 0.06g / L, 0.12g / L and 0.24g / L respectively; and the HP concentrations are 0, 0.05g / L, 0.10g / L and 0.15g / L respectively.

[0107] Step S2-2: The intelligent composite copper foil equipment control system reads the ratio of the amplitude and frequency of the copper foil that meets the standard to determine the optimal ratio of the composite additives of PEG, HVP and HP. The intelligent composite copper foil equipment mixes the electrolyte according to the optimal ratio of the composite additives of PEG, HVP and HP and adds the copper foil to the electrolyte. The x-ray diffractometer detects the lattice structure of the grains on the surface of the copper foil after the electrolysis of the copper foil and determines it as the first lattice structure. The intelligent composite copper foil equipment control system obtains the normal lattice structure of the copper foil after the electrolysis of the copper foil from the cloud and determines it as the second lattice structure. The first lattice structure is matched with the second lattice structure. Similarity: if the similarity between the first lattice structure and the second lattice structure is greater than or equal to 93%, the current copper foil electrolysis is judged to be normal, and the electrolysis control command is saved as 1; if the similarity between the first lattice structure and the second lattice structure is less than 93%, the current copper foil electrolysis is judged to be abnormal, and the electrolysis control command is saved as 0. The intelligent composite copper foil equipment control system obtains the normal composite additive ratio from the cloud to adjust the current electrolyte ratio. If the electrolysis control command is still 0 after adjustment, the electrolysis reaction of the copper foil is stopped, and the electrolysis data and the problems with the electrolysis are sent to the composite copper foil console to remind the staff.

[0108] Step S3-1: When the control system of the intelligent composite copper foil equipment obtains the electrolysis control command as 1, thread 3 is created, and the intelligent composite copper foil equipment coats and presses the electrolytic copper foil, wherein the coating and pressing process includes: 1) Copper foil coating: First, the electrolytic copper foil is placed in an electrolytic cell for chemical reaction to generate copper ions. Then the polyimide film is coated on the surface of the copper foil, and then dried, cooled and other processes are performed. 2) Single-sided pressing: The copper foil coated with the polyimide film is placed in a single-sided pressing machine, and after high temperature and high pressure, the polyimide film and the electrolytic copper foil are firmly bonded together. At this point, a single-sided composite copper foil is obtained. 3) Double-sided pressing: The single-sided composite copper foil is placed in a double-sided pressing machine, and after high temperature and high pressure, the copper foil coated with polyimide film on both sides is finally formed.

[0109] Step S3-2: The control system of the intelligent composite copper foil equipment obtains that the double-sided pressing of the composite copper foil is completed, and starts the tensile detector. The intelligent composite copper foil equipment performs dog-bone stretching on the composite copper foil (rectangular specimens are simpler and faster than dog-bone specimens because their sample processing technology is simpler and faster, and many tests use samples of this shape to evaluate the tensile performance. When using rectangular specimens to obtain tensile data, it is recommended to select test results in which the fracture is within the gauge length. However, in order to obtain accurate, reliable and repeatable tensile performance indicators, so as to correctly evaluate and compare the tensile performance of current collector materials, it is recommended to select dog-bone specimens for tensile experiments). The tensile detector detects the current tensile strength (maximum gravitational force to resist material fracture, usually expressed in MPa) and elongation at break (relative elongation of the material when it breaks. Usually expressed as a percentage) of the composite copper foil, which are determined as the first tensile strength and elongation at break. The control system of the intelligent composite copper foil equipment obtains the normal tensile strength and elongation at break of the composite copper foil coated with polyimide film on both sides from the cloud, and determines them as the second tensile strength and elongation at break. The first tensile strength and elongation at break are matched with the second tensile strength and elongation at break. If the difference between the first elongation at break and the second elongation at break is between ±2.3%, and the first tensile strength is in the range of 96%-103% of the second tensile strength, the current composite copper foil is judged to be of qualified quality. If the difference between the first elongation at break and the second elongation at break is not between ±2.3%, or the first tensile strength is not in the range of 96%-103% of the second tensile strength, the current composite copper foil is judged to be of unqualified quality. The control system of the intelligent composite copper foil equipment obtains the standby pressing temperature and pressure parameters of single-sided pressing and double-sided pressing from the cloud to adjust the intelligent composite copper foil equipment. If the quality of the composite copper foil after adjustment is still unqualified, the single-sided pressing and double-sided pressing operations are stopped, and the pressing data and abnormal messages are sent to the composite copper foil console to remind the staff. Figure 6 Schematic diagram of the rectangular and dog-bone copper foil patterns provided for this application, including a clamping end, a transition section, and a gauge section.

[0110] Step S4: the control system of the intelligent composite copper foil equipment obtains that the current composite copper foil is of qualified quality, creates thread 4, the intelligent composite copper foil equipment cleans and dries the composite copper foil of qualified quality, starts the photoelectric sensor, and connects the intelligent composite copper foil equipment to the irradiation device to irradiate the current composite copper foil with three different brightnesses. The photoelectric sensor detects the reflectivity of the composite copper foil under three different brightnesses, and determines them as the first, second, and third reflectivity. According to the three different brightness levels and the tensile strength of the current composite copper foil, the normal reflectivity is obtained from the cloud and determined as the fourth, fifth, and sixth reflectivity. Match the first, second, and third reflectivities with the fourth, fifth, and sixth reflectivities (matching reflectivities of the same brightness). If the first, second, and third reflectivities are less than or equal to 97.5% of the fourth, fifth, and sixth reflectivities, or the first, second, and third reflectivities are greater than or equal to 104.2% of the fourth, fifth, and sixth reflectivities, it is judged that there is a problem with the current cleaning of the composite copper foil, and the intelligent composite copper foil equipment replaces the cleaning liquid and re-cleans. If there is still a problem with the reflectivity of the composite copper foil after cleaning, the cleaning data and the abnormal cleaning problem are sent to the composite copper foil console to remind the staff. If the first, second, and third reflectivities are greater than 97.5% of the fourth, fifth, and sixth reflectivities, and the first, second, and third reflectivities are less than 104.2% of the fourth, fifth, and sixth reflectivities, it is judged that the current cleaning of the composite copper foil is normal, and the intelligent composite copper foil equipment control system connects the copper foil winding device to wind the composite copper foil with normal reflectivity, and the intelligent composite copper foil equipment control system uploads the wound composite copper foil data to the cloud for reference log viewing and data analysis.

[0111] Figure 7 The schematic diagram of the structure of the quality detection device of the composite copper foil equipment provided in this application includes:

[0112] An acquisition module 71 is used to acquire the vibration amplitude and vibration frequency of various types of copper foil scratch tests based on a vibration tester;

[0113] A determination module 72 is used to determine a first ratio between any two vibration amplitudes in each vibration amplitude; and to determine a second ratio between any two vibration frequencies in each vibration frequency;

[0114] The scratch test function detection module 73 is used to determine that the scratch test function of the composite copper foil device is normal if each first ratio belongs to a preset first ratio range and each second ratio belongs to a preset second ratio range; otherwise, determine that the scratch test function of the composite copper foil device is abnormal.

[0115] The scratch test function detection module 73 is specifically used to obtain the target vibration amplitude and target vibration frequency of the scratch test of each type of copper foil that are pre-saved when the function of the composite copper foil device is normal; for each type of copper foil, determine the third ratio of the vibration amplitude of the copper foil scratch test to the target vibration amplitude, and determine the fourth ratio of the vibration frequency of the copper foil scratch test to the target vibration frequency; if each third ratio belongs to the preset third ratio range, and each fourth ratio belongs to the preset fourth ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0116] The device also includes:

[0117] The electrolysis function detection module 74 is used to add the various types of copper foils into the electrolyte, and detect the first lattice structure of the grains on the surface of the copper foil after the electrolysis of the copper foil based on the X-ray diffractometer; obtain the second lattice structure of the grains on the surface of the copper foil of the various types after the electrolysis of the copper foil when the function of the composite copper foil equipment is normal; for each type of copper foil, determine the similarity between the first lattice structure and the second lattice structure corresponding to the copper foil; if each similarity falls within a preset similarity range, determine that the function of the composite copper foil equipment is normal; otherwise, determine that the electrolysis function of the composite copper foil equipment is abnormal.

[0118] The device also includes:

[0119] The pressing function detection module 75 is used for, for each type of copper foil, electrolyzing the copper foil, and then coating and pressing the copper foil to obtain a first composite copper foil corresponding to the copper foil; detecting the tensile strength and elongation at break of the first composite copper foil based on a tensile tester; obtaining the target tensile strength and target elongation at break of the first composite copper foil corresponding to each type of copper foil when the function of the composite copper foil device is normal; for each type of copper foil, determining the fifth ratio of the tensile strength of the first composite copper foil corresponding to the copper foil to the target tensile strength, and determining the sixth ratio of the elongation at break of the first composite copper foil corresponding to the copper foil to the target elongation at break; if each fifth ratio belongs to the preset fifth ratio range, and each sixth ratio belongs to the preset sixth ratio range, it is determined that the pressing function of the composite copper foil device is normal; otherwise, it is determined that the pressing function of the composite copper foil device is abnormal.

[0120] The device also includes:

[0121] The cleaning function detection module 76 is used to clean and dry the first composite copper foil corresponding to each type of copper foil to obtain a second composite copper foil; detect the reflectivity of the second composite copper foil based on a photoelectric sensor; obtain the target reflectivity of the second composite copper foil corresponding to each type of copper foil when the function of the composite copper foil equipment is normal; determine the seventh ratio of the reflectivity of the second composite copper foil corresponding to the copper foil to the target reflectivity for each type of copper foil; if each seventh ratio belongs to the preset seventh ratio range, it is determined that the cleaning function of the composite copper foil equipment is normal; otherwise, it is determined that the cleaning function of the composite copper foil equipment is abnormal.

[0122] Based on the same technical concept, on the basis of the above embodiments, in the embodiments of the present application, an electronic device is further provided. Figure 8 A schematic diagram of the structure of an electronic device provided in some embodiments of the present application. Figure 8 As shown, the electronic device includes: a processor 81, a communication interface 82, a memory 83 and a communication bus 84, wherein the processor 81, the communication interface 82, and the memory 83 communicate with each other through the communication bus 84;

[0123] The memory 83 stores a computer program. When the program is executed by the processor 81, the processor 81 performs the following steps:

[0124] During the operation of the composite copper foil equipment, the vibration amplitude and vibration frequency of various types of copper foil scratch tests are obtained based on the vibration tester;

[0125] Determine a first ratio between any two vibration amplitudes in each vibration amplitude; and determine a second ratio between any two vibration frequencies in each vibration frequency;

[0126] If each first ratio belongs to the preset first ratio range, and each second ratio belongs to the preset second ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

[0127] Since the principles and methods of solving the problems by the above electronic devices are similar, the implementation of the above electronic devices can refer to the implementation of the methods, and the repeated parts will not be repeated.

[0128] The communication bus mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0129] The communication interface 82 is used for communication between the above electronic device and other devices.

[0130] The memory may include a random access memory (RAM) or a non-volatile memory (NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0131] The above-mentioned processor can be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; it can also be a digital signal processing processor (Digital Signal Processing, DSP), an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc.

[0132] The present application also provides a computer storage readable storage medium, wherein the computer readable storage medium stores a computer program executable by an electronic device, and when the program runs on the electronic device, the electronic device implements any of the above method steps when executing.

[0133] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0134] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0135] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

Claims

1. A quality inspection method for composite copper foil equipment, characterized in that: The method comprises: During the operation of the composite copper foil equipment, the vibration amplitude and vibration frequency of various types of copper foil scratch tests are obtained based on the vibration tester; Determine a first ratio between any two vibration amplitudes in each vibration amplitude; and determine a second ratio between any two vibration frequencies in each vibration frequency; If each first ratio belongs to the preset first ratio range, and each second ratio belongs to the preset second ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

2. The method according to claim 1, characterized in that Determining that the scratch test function of the composite copper foil device is normal includes: Acquire the pre-saved target vibration amplitude and target vibration frequency of the scratch test of each type of copper foil when the composite copper foil device functions normally; For each type of copper foil, determining a third ratio of the vibration amplitude of the copper foil scratch test to the target vibration amplitude, and determining a fourth ratio of the vibration frequency of the copper foil scratch test to the target vibration frequency; If each third ratio belongs to the preset third ratio range, and each fourth ratio belongs to the preset fourth ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

3. The method according to claim 1, characterized in that The method further comprises: Adding the copper foils of the various types into an electrolyte, and detecting the first lattice structure of the grains on the surface of the copper foil after electrolysis of the copper foil using an X-ray diffractometer; Acquire the second lattice structure of the surface grains of the copper foil of each type of copper foil after electrolysis when the function of the composite copper foil device is normal, which is stored in advance; For each type of copper foil, determining the similarity between a first lattice structure and a second lattice structure corresponding to the copper foil; If all similarities fall within the preset similarity range, it is determined that the function of the composite copper foil device is normal; otherwise, it is determined that the electrolysis function of the composite copper foil device is abnormal.

4. The method according to claim 3, characterized in that The method further comprises: For each type of copper foil, electrolyze the copper foil, and then perform coating and pressing treatment to obtain a first composite copper foil corresponding to the copper foil; and test the tensile strength and elongation at break of the first composite copper foil using a tensile tester; Obtaining the pre-saved target tensile strength and target elongation at break of the first composite copper foil corresponding to each type of copper foil when the composite copper foil device functions normally; For each type of copper foil, determining a fifth ratio of the tensile strength of the first composite copper foil corresponding to the copper foil to the target tensile strength, and determining a sixth ratio of the elongation at break of the first composite copper foil corresponding to the copper foil to the target elongation at break; If each fifth ratio belongs to the preset fifth ratio range, and each sixth ratio belongs to the preset sixth ratio range, it is determined that the pressing function of the composite copper foil device is normal; otherwise, it is determined that the pressing function of the composite copper foil device is abnormal.

5. The method according to claim 1, characterized in that The method further comprises: For each type of copper foil, the first composite copper foil corresponding to the copper foil is cleaned and dried to obtain a second composite copper foil; and the reflectivity of the second composite copper foil is detected by a photoelectric sensor; Acquire the pre-saved target reflectivity of the second composite copper foil corresponding to each type of copper foil when the composite copper foil device functions normally; For each type of copper foil, determining a seventh ratio of the reflectivity of the second composite copper foil corresponding to the copper foil to the target reflectivity; If all the seventh ratios belong to the preset seventh ratio range, it is determined that the cleaning function of the composite copper foil device is normal; otherwise, it is determined that the cleaning function of the composite copper foil device is abnormal.

6. A quality inspection device for composite copper foil equipment, characterized in that: The device comprises: An acquisition module, used for acquiring the vibration amplitude and vibration frequency of various types of copper foil scratch tests based on a vibration tester; A determination module, used to determine a first ratio between any two vibration amplitudes in each vibration amplitude; and to determine a second ratio between any two vibration frequencies in each vibration frequency; The scratch test function detection module is used to determine that the scratch test function of the composite copper foil device is normal if each first ratio belongs to a preset first ratio range and each second ratio belongs to a preset second ratio range; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

7. The device according to claim 6, characterized in that The scratch test function detection module is specifically used to obtain the pre-saved target vibration amplitude and target vibration frequency of the scratch test of each type of copper foil when the function of the composite copper foil device is normal; for each type of copper foil, determine the third ratio of the vibration amplitude of the copper foil scratch test to the target vibration amplitude, and determine the fourth ratio of the vibration frequency of the copper foil scratch test to the target vibration frequency; if each third ratio belongs to a preset third ratio range, and each fourth ratio belongs to a preset fourth ratio range, it is determined that the scratch test function of the composite copper foil device is normal; otherwise, it is determined that the scratch test function of the composite copper foil device is abnormal.

8. The device according to claim 6, characterized in that The device also includes: The electrolysis function detection module is used to add the various types of copper foils into the electrolyte, and detect the first lattice structure of the grains on the surface of the copper foil after the copper foil is electrolyzed based on an X-ray diffractometer; obtain the second lattice structure of the grains on the surface of the copper foil of the various types of copper foil after the copper foil is electrolyzed when the function of the composite copper foil device is normal; for each type of copper foil, determine the similarity between the first lattice structure and the second lattice structure corresponding to the copper foil; if each similarity falls within a preset similarity range, determine that the function of the composite copper foil device is normal; otherwise, determine that the electrolysis function of the composite copper foil device is abnormal.

9. The device according to claim 8, characterized in that The device also includes: A pressing function detection module is used for, for each type of copper foil, electrolyzing the copper foil, and then coating and pressing the copper foil to obtain a first composite copper foil corresponding to the copper foil; detecting the tensile strength and elongation at break of the first composite copper foil based on a tensile tester; obtaining the target tensile strength and target elongation at break of the first composite copper foil corresponding to each type of copper foil when the function of the composite copper foil device is normal; for each type of copper foil, determining the fifth ratio of the tensile strength of the first composite copper foil corresponding to the copper foil to the target tensile strength, and determining the sixth ratio of the elongation at break of the first composite copper foil corresponding to the copper foil to the target elongation at break; if each fifth ratio belongs to the preset fifth ratio range, and each sixth ratio belongs to the preset sixth ratio range, it is determined that the pressing function of the composite copper foil device is normal; otherwise, it is determined that the pressing function of the composite copper foil device is abnormal.

10. The device according to claim 9, characterized in that The device also includes: A cleaning function detection module is used to clean and dry the first composite copper foil corresponding to each type of copper foil to obtain a second composite copper foil; detect the reflectivity of the second composite copper foil based on a photoelectric sensor; obtain the target reflectivity of the second composite copper foil corresponding to each type of copper foil when the function of the composite copper foil equipment is normal; for each type of copper foil, determine the seventh ratio of the reflectivity of the second composite copper foil corresponding to the copper foil to the target reflectivity; if each seventh ratio belongs to the preset seventh ratio range, it is determined that the cleaning function of the composite copper foil equipment is normal; otherwise, it is determined that the cleaning function of the composite copper foil equipment is abnormal.

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